Lithium Redistribution in Lithium-Metal Batteries

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/2.027210jes· OSTI ID:1211489

Ferrese, A; Albertus, P; Christensen, J; Newman, J

A model of a lithium-metal battery with a CoO2 positive electrode has been modeled in order to predict the movement of lithium in the negative electrode along the negative electrode/separator interface during cell cycling. A finite-element approach was used to incorporate an intercalation positive electrode using superposition, electrode tabbing, transport using concentrated solution theory, as well as the net movement of the lithium electrode during cycling. From this model, it has been found that movement of lithium along the negative electrode/separator interface does occur during cycling and is affected by three factors: the cell geometry, the slope of the open-circuit-potential function of the positive electrode, and concentration gradients in both the solid and liquid phases in the cell. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.027210jes] All rights reserved.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: DE-AR0000067
• OSTI ID: 1211489
• Journal Information: Journal of the Electrochemical Society, Vol. 159, Issue 10; ISSN 0013-4651
• Country of Publication: United States
• Language: English